In Alabama, you can adorn your car with a state-issues license plate showing your support for everything from your favorite college football team to amateur radio enthusiasts.

Among the tags offered is one with the message "Choose Life," an uplifting message to some but a political statement to others. The tag, purchased by almost 1,500 Alabamians, is sponsored by the Alabama Pro-Life Coalition. The license plate first went on sale in 2014 and, according to the Coalition is a "small but obvious pro-life rolling billboard."

It's common for all specialty license plates to benefit sponsoring organizations but the "Choose Life" tag's ties to the contentious abortion issue sometimes draws additional scrutiny. It's also not a tag that every state offers.

Slate found 29 states offer some form of pro-life license plate. Of those, 15 - including Alabama - explicitly state that the proceeds go to anti-abortion organizations or crisis pregnancy centers. Alabama and 17 other states also provide a portion of the funding to organizations providing adoption and maternity services. Ten states specifically prohibit the allocation of funds raised by the sale of "Choose Life" tags to organizations that provide abortion services. Alabama is not one of the states with a specific prohibition but none of its funds go to those organizations.

Net proceeds from Alabama's Choose Life plate goes to Alabama Pro-Life Coalition to be used to "counsel and meet the needs of women in a crisis pregnancy who are committed to keeping or placing their children for adoption," according to the Alabama Department of Revenue.

The tags are not without their controversies.

A U.S. Supreme Court ruling that Texas did not violate the First Amendment when it denied the Sons of Confederate Veterans request for tag with the Confederate flag has led to a review of a North Carolina decision that prohibited the state from selling a "Choose Life" tag without an accompanying pro-choice option.